Concrete unit assembly for wall construction



Jan. 17, 1939.

B. F. KREHBIEL CONCRETE UNIT ASSEMBLY FOR WALL CONSTRUCTION Filed Sept. 7', 1937 5 Sheets-Sheet 1 INVENTOR w m E. m, N wig m/ E 1E fig Q i 1 1 3 m0 1 1 m mm m 1 m m\ Jan, 17, 1939. B. F. KREHBIEL 2,143,938

CONCRETE UNIT ASSEMBLY FOR WALL CONSTRUCTION Filed Sept. 7, 1937 3 Sheets-Sheet 2 INVENTOR EEA/JAMENE K? 315% 7 BY -N ATTORNEY a H I UHHD UHM H u n H n nH l l l l l l ua 1 HH |NH Hhfll l l ldl i lfl l x nnhlfl HH H I HI I HHUHI I HH IHHHHH HHHHI IHHHHHHHHH J13 w I Jan. 17, 1939. B. F. KREHBIEL I 2,143,933

CONCRETE UNITIASSEMBLY FOR WALL CONSTRUCTION Filed Sept' 7, 1937 3 Sheets-Sheet 5 INVENTOR.

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ATTORNEY.

Patented Jan. 17, 1939 UNITED STATES rATsNr OFFICE CONCRETE UNIT ASSEMBLY FOR W L CONSTRUCTION 5 Claims.

My invention relates to unit assembly for wall construction, and has for its principal object the assembly of concrete units in such a way that a wall formed thereby will be insulated through the medium of an air space medially of the wall,

and means to reinforce and connect. the units as the wall is constructed.

- A further object of my invention is to form a concreteunit for wall construction that is inexpensive, easily assembled and more particularly have means to align the units with respect to vertical planes.

A still further object of my invention is to construct a concrete unit in such a manner that .one side of said unit may be faced with special textureand color, as the unit is poured in the ,mold, allof which is monolithic.

A still further object of my invention is to construct a wall comprising two or more slabs of unitary construction, having means to space and anchor said slabs in their relative position with respect to a wall formed thereby, and means in the spacing elements to render the same impervious to, moisture passing therethrough.

A still further object of my invention is to form concrete blocks, in such a way that angles formed thereby will receive reinforcing rods as anchoring means to avoid opening of the joints, or displacement of the units at their intersections.

A still further object of my invention is to provide a spacing block for the wall slabs, adapted to line the abutting end joints of the slab units and also adjacent courses above and below, the said spacing block having moisture proof means medially positioned therein with respect to the block longitudinally and in parallelism with the units engaged thereby, and the said block having an anchor connecting said unit portions to firm engagement with their respective sides of said block, one edge of said units being grooved to receive a rod that will pass through a series of said units as reinforcing means therefor, and especially at their abutting joints, and the said anchor means of the spacer adapted to engage said rods.

These and other objects will hereinafter be more fully explained, reference being had to the accompanying drawings forming a part of this specification and in which like characters will apply to like parts in the different views.

Referring to the drawings:

Fig. 1 is the back side view of one of the concrete units.

\ Fig; 2 is an end view of Fig. 1, with the fragmentary portion of the second unit connected therewith, showing the position of the reinforcing rod. withinthe groove.

Fig. 3 is the grooved edge view of Fig. 1 showing a fragmentaryportion of a rod positioned in the groove, the rod not being a part of the unit.

Fig. 4 is the front or face view of the unit, the tonguepartially removedfor lack of space to fully illustrate.

Fig. 5 is the tongued edge view of the unit.

Fig. -6 illustrates a fragmentary portion of a wall, showing theportion of the spacing block and anchoring the element as positioned at the abutting ends of'the units, also showing the 15 lap of the element ends upon the upper and lower courses of the units, parts are removed for convenience of illustration.

Fig. 'lisa plan or edge view of Fig. 6 as applied for wall construction, the reinforcing rods in each unit groove fragmentarily shown, but so positioned to illustrate the anchor of the spacing block onlsaid rods, and furthermore to illustrate the position of a fibrous moisture proof insulation insaid spacing block. 25

Fig-8 illustratesa section of a wall construction showing the abutting joints of the units aligned to receive vertical reinforcing rods and also horizontally positioned rods at the abutting edges of the units. 30

Fig. 9 is a plan view ofFig. 8, the spacing blocks equal to the length of the width of said units, the upper end of each'to lap the horizontal joint between, said units.

Fig. 10 is a perspective view of the spacing block showing the hook connection for abutting side slabs as anchoring means for the sides of the block withyfibrous insulation therebetween.

Fig. 11 is aplan view of a wall formed by one tier of the units, with reinforcing rods placed in the groove and extending around the angle.

Fig. 11-A illustrates a modified form of each end of the units, in which vertical reinforcing rods are positioned and secured by pouring concrete in the opening of the joint, the latter functioning as a key for the joint connections, also showing the'horizontal reinforcing rods interlapping the vertical rods positioned in said vertical joints.

Fig.1 11-B is a side view of Fig. 11-A, fragmentarily shown but illustrating the reverse position of the joints as the courses are built up.

Fig. 12 is aplanview of a wall formed by the units spaced apart and illustrating the bend of the rods at an angle .of the wall, the outer 55 corner being beveled by pointing with concrete mortar.

Fig. 13 is a similar view to that of Fig. 12 except showing a quadrant circular member for the corner, the quadrant being formed by a special mold and adapted to join with the abutting ends of the straight units.

Fig. 14 is a vertical sectional View of a wall taken on line i -i i in Fig. 13, showing a modified form of the unit edges to receive the reinforcing rods and to extend therealong from unit to unit, also showing the lapped end position of the spacing blocks, the end lap of the spacing biocks staggeredly positioned upward through the wall.

Fig. 15 is an enlarged perspective view of the spacing block showing hooks at the outer extremity of its anchor rod, that are adapted to engage on their respective reinforcing rods in the wall.

My invention herein disclosed consists of a concrete member l rectangular in form, the thickness of which is comparatively reduced with respect to its face dimension, and hereafter re-= ferred to as a unit, one edge of the unit has a groove 2 longitudinally extending therealong and approximately in its center with respect to cross section, while the other edge has a tongue 3 outwardly extended and adapted to engage in the groove of an adjacent unit constructing a wall slab later described.

The groove is greater in depth than the outward extension of the tongue, and being so arranged will permit the installation of a reinforcing rod d placed in the groove, and when said units are placed together as shown in Fig. 2, the groove and joint therebetween is fiush with mortar, preferably concrete as at A.

Each end of the said unit is formed by an oblique angle as at B, extending from one side across, terminating at a spaced distance from their respective ends of the unit as at C, by which means the ends of said units are placed abutting each other, a groove D is formed as shown in Fig. 7, in which View two slabs E and F are shown and being spaced apart by a block 5 engaging over each said groove D, and the said block being pendently supported by an anchor rod 5 extending through the block near the upper end thereof, the anchor having a hook G on each end to engage rods 4 respectively.

The block as shown in Figs. 6 and 7 will engage the ends of the units at its opposite sides and the length thereof being greater than the width of the units as shown in Fig. 6, will lap to engagement with the course of units below and above tieing all firmly together in alignment with respect to the face of the units, the block being so positioned will close the open side of said groove D, as retaining means for a concrete grout poured in said groove to seal the abutting end joints, at which time the grooves in which said rods t are positioned, may be filled with like grouting as above stated.

Centrally positioned and extending through block 5, is a fibrous insulating element 1, adapted to resist moisture passing through the block nd being secured therein by dowels 3 positioned nearer and passing through each end thereof as shown in Fig. 10.

In Figs. 8 and 9 is shown a wall constructed of units, wherein the joints are not broken, but vertically aligned for the purpose of reinforcing each slab of the wall vertically, by placing a rod 9 in the said opening D as provided in each slab portion of the wall.

In Figs. 13, 14, 11- A and l1-B is shown a modification for the end and edge formation that function the equivalent to the arrangement heretofore described, and the said modification has certain advantages with respect to end and edge formation, the ends being so arranged that the vertical reinforcing rods may be placed therein and securely sealed with concrete grouting without the assistance of said anchor blocks, however the said anchor blocks may be employed similar to that described above except being vertically staggered in the wall.

Furthermore the anchor rod has on each end thereof an arcuate hook i 5, said hook being offset so that the straight portion of the rod will engage in the horizontal joint between the units, while the hooks seat on said reinforcing rods respectively.-

The arrangement above briefly described consists of a unit It having an arcuate groove H in each end thereof, the edge portion adjacent the groove outwardly extends for close engagement as at H, while the portion oppositely thereto is spaced apart as at J, by which means the grouting #2 may be easily placed in the groove, and furthermore the end formation thus arranged is reversible in courses as shown in 1l-B, this arrangement will permit vertically reinforcing of a single slab, while the horizontally disposed reinforcing rods are seated in semi-circular grooves i3 extending centrally along each edge of the units, as shown in Fig. 14, and the said rods are embedded in grouting as the units are stacked, it being understood that the end joints register vertically as the units are reversed in alternate courses, and along said vertical joints is placed separating blocks M as shown in Fig. 15 and the said blocks being staggored with lapped ends as shown in Fig. 14.

A wall thus constructed Will function as a form between which concrete is poured, and the thickness of such wall may be varied by increasing or decreasing the width of the block, consequently the slabs of the wall and blocks are integrally joined and this method of construction is preferable for foundation or basement walls, and the expense of building forms of lumber is eliminated.

In Fig. 13 a wall is formed at a right angle to each other, the corner of which is arcuate in form, the latter being a quadrant member l6, and having a groove in its upper and lower edges to receive a reinforcing rod 3 previously described, said rod bonding said arcuate member to the slab portion of the wall tangentially extending therefrom.

Fig. 12 shows a corner formed by abutting the edges of the unit so that the rod will extend therearound as bonding means therefor, and the space between the ends being filled with concrete to weather proof and finish the outer corner on a bevel as at K, and the corner as shown in Fig, 11 is arranged by the side and end of a unit abutting, the side being notched to receive the reinforcing rod that is bent abruptly to align and seat in its respective groove of the units, and the said Fig. 11 illustrates a single constructed slab of the units, but does not restrict against the use of a similar assembly for another slab spaced therefrom to form a wall similar to that shown in Figs. 12 and 13.

Other modifications may be arranged for corner constructions and walls being so constructed, the outside face of which may be finished as the units are run or the said face may be of rough texture, to receive stucco applied thereto, while the inside of such walls may be plastered in a usual manner for an interior finish, and such other modifications may be made as lie within the scope of the appended claims.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In a wall construction, a wall of the class described, the wall comprising two unitary slabs, each slab formed by abutting the ends of said units, and stacking the units with their edges abutting, rods positioned in the grooves of the unit and extending across their abutting ends, said rods embedded in concrete by filling the grooves therewith, a spacing block having a rod transversely extending through the block near one end thereof, the rod having a hook formed by turning an end portion thereof at right angle to the rod, the hooks to engage their respective rod of the slab as anchoring means for each slab to the block, and the said block being positioned at the abutting ends of the units as closing means for the open sides of the grooves, and the grooves being filled with concrete.

2. In a wall construction, a wall of the class described comprising two unitary slabs spaced apart, each unit being made of concrete and having a groove for one edge thereof, and a tongue formed along the other edge, whereby similar units are brought to registry by the tongue and groove engagement at their abutting edges, and the grooves being of greater depth than the outer extension of the tongues to form a space in which to place rods extending through a series of said units, and the abutting ends of each unit being offset from the adjacent inner sides of the slabs formed thereby and terminating inward from the other side and ends of the unit, whereby an opening is formed at the abutting ends of each slab and oppositely positioned, a block having an anchor rod extending through and near one end thereof, each end of the rod having a hook formed thereon to engage the rod in the groove of each slab respectively, and the said block having an insulating element medially extending therethrough and in parallelism with the slabs of the wall, and the unit edge grooves and grooves formed by their abutting ends being filled by plastic concrete substantially as shown and specified.

3. In a concrete unit for wall construction, a unit of the class described comprising a rectangular body having ends and edges, one edge having a tongue outwardly extending and medially positioned on its edge with respect to cross section and extending therelong, the other edge having a groove extending therealong and medially positioned in its edge with respect to cross section, the said groove extending inward a greater distance than the outward extension of said tongue, by which means an open space is had between the bottom of the groove and the outer extremity of the tongue of a similar unit when entered therein, each end of said unit body having an outward extension at the corresponding sides of the unit and extending across the respective ends thereof the outer .side of each extension being aligned with their respective side of the unit, by which means a groove is formed when the similar unit body extension abuts in registry therewith.

4. In a wall construction, a wall of the class described comprising a plurality of unitary slabs spaced apart, each unit being made of concrete and having a groove for one edge thereof, and a tongue formed along the other edge, whereby similar units are brought to registry by the tonue and groove engagement at their abutting edges, and the grooves being of greater depth than the outer extension of the tongue to form a space in which to place rods extending through a series of said units, and the abutting ends of each unit being offset from the adjacent inner sides of the slabs formed thereby, terminating inward from the other side and ends of the unit, whereby an opening is formed at the abutting ends of each slab and oppositely positioned, a block having an anchor rod extending therethrough, each end of the rod having a hook formed thereon to engage the rod in the groove of each slab respectively, and the said block having means to render the same impervious to moisture, and the unit edge grooves and grooves formed by their abutting ends being filled by plastic concrete substantially as shown and specified.

5. In a wall construction, a wall of the class described comprising two unitary slabs spaced apart, each unit being made of concrete and having a groove for one edge thereof, and a tongue formed along the other edge, whereby similar units are brought to registry by the tongue and groove engagement at their abutting edges, and the grooves being of greater depth than the outer extension of the tongues to form a space in which to place rods extending through a series of said units, and the abutting ends of each unit being offset from the adjacent inner sides of the slabs formed thereby and terminating inward from the other side and ends of the unit, whereby an opening is formed at the abutting ends of each slab and oppositely positioned, a block having an anchor rod extending therethrough and outward therefrom and each end having a hook to engage the rod in the groove of each slab respectively, and the said block being positioned at a selected point intermediate of the ends of the unit, and the unit edge grooves and grooves formed by their abutting ends being filled by plastic concrete substantially as shown and specified.

BENJAMEN F. KREHBIEL. 

